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          1. 2017-04-25
            Cast steel knife gate valve

            Cast steel knife gate valve

            The gate plate is the opening and closing parts of gate valve, and the direction of movement of the gate and the fluid direction perpendicular to the gate valve can only be fully open and fully closed, not suitable for regulation and throttling. The gate has two sealing surfaces. The two most commonly used wedge gate valves are wedge-shaped, and the wedge angle varies with the valve parameters, usually 5o. Gate valve has the following advantages;

            1. Fluid resistance is small, the sealing surface by the media erosion and erosion of small.
            2. Open and close more effort.
            3. Media flow is unrestricted, no spoiler, no pressure reduction.
            4. Simple shape, short structure length, good manufacturing process, wide application.
            Nominal pressure or pressure level: PN1.0-16.0MPa, ANSI CLASS 150-300LB, JIS10-20K
            Nominal diameter or caliber: DN10 ~ 1000, NPS 1/2 ~ 36 "
            Connection: flange, butt welding, thread and so on
            Applicable temperature: -196 ℃ ~ 700 ℃
            Drive: manual, bevel gear drive, pneumatic, electric, hydraulic, gas-liquid linkage, electro-hydraulic linkage